Acetylene-generator.



s ieaaai onion WILLIAM COBUBN AND oHAELEs w. DAVIS, or SEATTLE,wasnlueron, .assrenons 0E ONE-THIRD TO JULES MAES, or SEATTLE,WASHINGTON.

ACETYLENE-GENERATOR.

Application filed .Tune 1, 1915.

To all whom it may concern Be it known that we, WILLIAM COBURN andCHARLES W. DAVIS, citizens of the United States, and residents ofSeattle, in the county of King and State of Washington, have inventedcertain new and useful Improvements in Acetylene-Generators, of whichthe following is a specification.

Our invention relates to lanterns, and consists of a constructionwherein an acetylene generator is incorporated in the lantern, theconstruction being novel in many features.

The object of our invention is to provide an improved construction ofsuch parts whereby the eiiiciency and convenience of handling may beincreased.

The scope of the invention may be determined by an inspection of theclaim terminating this specification.

The drawing accompanying herewith shows the preferred form ofconstruction.

The frame work l and the glass globe 40 may all be of any suitable orstandard construction. Secured in the lower part of the frame 4-. is acup-like casing 3, the lower portion of which is somewhat reduced indiameter to form a shallow cup 80, of a diameter fitting over the lowerend of the acetylene generator used.

The generator is divided into two principal parts, the lower part 1being of cup shape, and constituting the carbid chamber, and the upperpart 2 constituting the water tank. The two parts are secured together,as by threaded sections at 12, and the joint between them made tight bythe use of a gasket or packing ring 13. A tubular pillar 5 is axiallyplaced, and extends through the water tank without communicating withthe interior thereof. This forms a conducting channel for the gas fromthe carbid or generating chamber 1 to the burner 6, the burner beingmounted on top of the water tank. The upper part 50 of this tubularpillar is enlarged somewhat and contains a layer 51 of gas-screeningmaterial, which material may be a wad of fibrous cotton, or likematerial.

The gas conveying channel is extended downwardly by a tube 7 whichextends close to the bottom of the carbid chamber. The lower end of thistube is open, but may have a screen across this end if desired. The gasSpecification of Letters Patent.

Patented Aug. 29, 1916.

Serial No. 31,442. i

is admitted to the tube 7 through orifices 70 located just below thepart of the water tank 2 into which the tube enters.

ater is admitted from the tank 9. into the chamber 1 through a passage 9which passage is controlled by a needle valve 90, the stem of whichextends laterally and pro ects from the generator, being provided with aknob 91 by which it may be conveniently operated. The water admittedthrough the passage 9 is delivered to a tube 8 which branches from thetube 7 By this construction the water is admitted, not upon the top ofthe mass of carbid, but at the bottom thereof. Should any particle ofcarbid enter through the gas admission openings 70, these will fall tothe bottom of the tube 7, where they will quickly become decomposed bythe water admitted through the tube 8. The water tank is provided with aremovable plug 20, through which it may be charged.

The case surrounding the generator is spaced outwardly therefrom. Air isadmitted to the chamber thus formed through openings 31 at the lowerpart thereof, and admitted to the space within the globe elO throughholes formed in a flange 32 which projects inwardly and contacts withthe generator at a higher level, thereby holding the same securely inposition.

By reason of the above construction water is admitted to the lower partof the mass of carbid, while the gas is drawn off through the openings 7O, which are above the level of the carbid.

Having now described our invention, what we claim and desire to secureby Letters Patent of the United States is:

An acetylene generator comprising a cuplike carbid chamber, a water tankabove said carbid chamber adapted to screw upon and close the same, atubular gas delivery pillar extending upward through the waters tank,and axially placed therein, a burner upon the upper end of said pillar,a tube secured in the bottom of said water tank and forming a downwardextension of and communicating directly with the channel of said pillar,said tube projecting well within said carbid chamber, but not to thebase thereof, and being open at its lower end, said tube being alsoprovided with gas inlet openings nel, and a second "tube communicatingwith said Water channel and extending Well into saidcarbid chamber, saidsecond tube com- 10 Signed at Seattle, Vvashington, this 26th day ofMay, 1915.

WILLIAM COBURN.

CHARLES \V. DAVIS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, .D. C.

